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How to limit the amount of concurrent async I/O operations?
...y to limit the concurrent amount of these async http requests? So that no more than 20 web pages are downloaded at any given time. How to do it in the most efficient manner?
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How to create a directory if it doesn't exist using Node.js?
Is this the right way to create a directory if it doesn't exist.
It should have full permission for the script and readable by others.
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How to beautify JSON in Python?
Can someone suggest how I can beautify JSON in Python or through the command line?
13 Answers
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What did MongoDB not being ACID compliant before v4 really mean?
I am not a database expert and have no formal computer science background, so bear with me. I want to know the kinds of real world negative things that can happen if you use an old MongoDB version prior to v4 , which were not ACID compliant. This applies to any ACID noncompliant database.
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How to go about formatting 1200 to 1.2k in java
I'd like to format following numbers into the numbers next to them with java:
23 Answers
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Checking if a variable is defined?
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Use the defined? keyword (documentation). It will return a String with the kind of the item, or nil if it doesn’t exist.
>> a = 1
=> 1
>> defined? a
=> "local-variable"
>> defined? b
=> nil
>> defined? nil
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How do I programmatically determine if there are uncommitted changes?
In a Makefile, I'd like to perform certain actions if there are uncommitted changes (either in the working tree or the index). What's the cleanest and most efficient way to do that? A command that exits with a return value of zero in one case and non-zero in the other would suit my purposes.
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Text vertical alignment in WPF TextBlock
... to the text inside a TextBlock? I found TextAlignment property but it is for horizontal text alignment. How do I do it for vertical text alignment?
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Can I add extension methods to an existing static class?
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No. Extension methods require an instance variable (value) for an object. You can however, write a static wrapper around the ConfigurationManager interface. If you implement the wrapper, you don't need an extension method since you can just add the method directly.
public static c...
Why must a lambda expression be cast when supplied as a plain Delegate parameter
Take the method System.Windows.Forms.Control.Invoke(Delegate method)
8 Answers
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